Bracelet.



C. 1. CALLAHAN & F. S. ELLIS.

BRACELET.

APPLICATION FILED nEc.2I.

Patented Oct. 24, 1916. my.

e Q7 z's www @Mor/twig lllhl'lF AF@ AFF CHARLES J. CALLAI-IAN AND FRED S. ELLIS, OF ATTLEBOEO, MASSACHUSETTS.

. BRACELET.

incenso.

Application filed December 21, 1915.

To all whom t may concern Be it known that we, CHARLES J. GALLA- HAN and FRED S. ELLIS, citizens of the United States, and residents of the city of Attleboro, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Bracelets, of which the following is a specification.

This invention relates to bracelets of the extendible type, comprising a plurality of interconnecting guide links and slide links.

The object of this invention is to provide an improved construction of the so-calledA guide link member, whereby this link is formed very strong and durable and at a reduced cost, the side members of this link being positively and accurately connectedA together and held in spaced apart relation and in absolute parallel alinement with each other.

A further object of the invention is to provide a guide link comprising a pair of oppositely disposed trough-shaped outer or shell members and to provide a lining `member for each shell member, each lining member having an integral post arranged to eX- tend between them and hold said shell members in spaced apart relation.

A still further object of the invention is to construct these lining members from a length of tubing whereby the lining plate may be formed by swaging the middle por-` tion of the tubular member leaving the ends in tubular form and turned at right angles to the plane of the plate, to serve as tubular posts for the purpose ofconne'cting said lining plates together.

The invention further consists in securing the lining plates to their respective shell members by splitting the edge of the shell and rolling the split portion down over the edge of the lining plate, thus securely binding the lining in position in its troughshaped shell.

The invention further consists in the provision of means for automatically locking the parts together when assembled and nally forced into relative finished position. f

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings: Figure 1- is a side view of the completed bracelet having links et our improved construction.

Specification of Letters Patent.

Patented Uct. 24, 1916..

Serial No. 68,082.

Fig. 2- is an edge view showing the general arrangement of the interconnecting guide links and the slide links. Fig. 3 shows the inner' face of one of the outer shell members of the guide link. Fig. 4 is a sectional end view of line 4E-1 of Fig. 3 showing the protuberance on the inner face of the shell for riveting or spreading the ends of the tubular post. Fig. 5- is a perspective view showing a length of tubing with its ends bent up, before its middle portion is struck or swaged into the form of a lining plate. Fig. G- shows one of the lin* ing pl-ates formed from the tubing illustrated in Fig. 5 with the posts at its ends formed integral therewith., Fig. 7- is a view of the opposite lining plate also formed from a similar tube to that shown in Fig. 5, its ends being turned upward and formed slightly tapering, and of a size to enter the tubular post in the opposite plate and of a length to pass therethrough sufficiently to be riveted or spread over onto the back thereof. Fig. 8- is a sectional view showing the two lining plate members assembled, the ends of the post in one plate extending through the back of the other plate. Fig. 9#- illustrates one of these lining plates in position in the shell member and secured therein by splitting the edge of the stock in the shell and rolling the split portion over the edge of the lining plate. Fig. 10*w is a sectional view showing the whole assembled, the protuberance in one of the shell members as entering and spreading the ends of the tubular posts in the opposite lining members. Fig. 11- is an external view of the guide link assembled. Fig. 12- is a central sectional view of the guide link on line 12-12 of Fig. 11. Fig. 13- is a perspective view of the slide link.

Referring to the drawings, 15 designates one of our improved guide links which is formed of a pair of outer or shell members 16, each of which is preferably struck into a trough-shape, and preferably from precious metal such as gold or silver. As this shell is being swaged and formed into shape, a small protuberance 17 is raised and formed at either end thereof on the inner surface of its inner wall 18 for the purpose hereinafter described.

In order to connect these shell members together in spaced apart relation, we have provided a pair of lining members 19 and 20, see 6 and 7, one each shelh These lining members may be made of base metal as no portion of them is exposed. In order to facilitate the construction of these lining members, we preferably form them from a short length of tubing 21,"see Fig. 5, and bendy the ends 22 and 23 upward and then swage the intermediate portion into a flat plete illustrated in Figs. 6 and 7. The lining plate 20 fits into one ofthe shell members and has its tubular ends 24 formed slightly smaller and preferably tapering to fit into the tubular ends 25 of the opposite plate 19 set in the opposite shell. Vhen in position', these ends 24 are of a length to great strength and rigidity to this guide link.

Another feature of this construction is that the tubular posts 25 are of the proper length to form positive spacers to accurately determine the veXact distance between the opposite shells. After these lining members `have'been accurately formed each is placed in its respective shell 16 and is secured therein by splitting the edge 27'of the shell, seeFig. 9, and rolling the split portion 28 inward over onto the lining plate 20 thus securely attaching them without the use of solder. In assembling therparts after both ofthese linings have been positioned in their respective shells, the tapered' posts 24 are caused to enter the larger tubular posts 25 of the opposite member, and when the two are forced together underpressure the protuberances 17 near the ends of the shell 16, s ee Fig. 10, are caused to enter the projecting ends 26 of the tapered posts 24 causing these ends to spread and thereby automatically lock all of these members firmly together into' a unitof great strength and all without the use of solder.

By this construction, it will be noted that that portion of the link which requires the greatest strength andA rigidity is formed of base or the cheaper metal, while the outer or shell portion of this construction, may be formed of precious metal, and as no strength is required of this shell portion, it may be made as thin as desired without sacrificing the strength of the link. The slide link member 29, which is that link which slides between the guide link members, and also links the different members of the bracelet together, is usually made'in an elongated loop form, see Fig. 13, and of a width to slide in the space 30 between the guide members. One of Vthese connecting posts which serve as spacers for the opposite shell members also serves as a guide for one end of this slide link, and the other post serves as the member to which the next adjacent slide link is connected.

It is found in practice that the construction of a post formed tapering and forced into an opposite tubular post is a construction which in itself in some cases might be sufficient and strong enough to lock the two lining members together so that they cannot pull apart, but in order to make the lock absolutely positive, we have provided means for spreading the end of this inner post member over the back of the opposite plate.

We have shown and described one means of connecting the shell members together by posts formed on opposite lining members, but the details of this construction may be varied without departing from the spirit and scope of our invention as defined by the appended claims.

We claim:

1. In a bracelet, a guide link comprising a pair of oppositely disposed trough-shaped shell members, a lining member secured in each shell member, and means for connecting the opposite ends of said lining members to hold said shell members in spaced apart relation.

2. In a bracelet, a guide link comprising a pair of oppositely disposed trough-shaped shell members, a lining member secured in each shell member and a post between said lining members at their opposite ends to hold said shell members in spaced apart relation.

3. In a bracelet, a guide link comprising a pair ofy oppositely disposed parallel trough-shaped shell members, a lining plate secured in each shell member, a post formed integral with each end of each plate and extending across and connected to the opposite plate to hold said shell members in spaced apart relation.

4. In a bracelet, a guide link comprising a pair of oppositely disposed parallel side members, each having a post at its opposite end formed integral therewith, the posts in one member being tubular to receive the post of the other member, whereby said side members are rigidly secured in spaced apart relation to each other.

5.V In a bracelet, a guide link, comprising a pair of oppositely disposed spaced apart parallel members between which the slide linkv of the bracelet may move, spacing members between said parallel members, and means whereby said spacing members are locked together automatically when the parts are assembled and forced into relative finished position.

6. In a bracelet, a guide link comprising a pair of oppositely disposed troughshaped shell members, a lining member secured in each shell member, comiecting members between said lining members, and

means whereby said connecting members are automatically locked when forced toether, said connecting members also holding said shell members in spaced apart relation.

7. In a bracelet, a guide link comprising ,a pair of oppositely disposed parallel trough-shaped shell members, a lining plate secured in each shell, a post formed integral with each end of each plate and extending across and connected to the opposite plate to hold said shell members in spaced apart relation, and means whereby said spacing members are locked together automatically when the parts are assembled and forced into relative finished position.

8. In a bracelet, a guide link, a pair of oppositely disposed parallel trough-shaped shell members, a lining plate secured in each shell member, tubular spacing posts formed integral with one of said plates, and means for spreading said posts and locking the parts together automatically when finally forced into relative finished position.

9. In a bracelet, a guide link comprising a pair of oppositely disposed parallel side members, each having a post at its opposite end formed integral therewith, the posts in one member being tubular and tapering to receive the correspondingly shaped post of the other member, whereby said side members are rigidly secured together n spaced apart relation to each other.

' In testimony whereof we aiiiX our signa tures in presence of two witnesses.

CHARLES J. CALLAHAN. FRED S. ELLIS. Witnesses:

HOWARD E. BARLOW, A. F. MAOREADY.

@epica ot this patent may *be obtained for ve cents each, by addressing the Commissioner of Patent-a, Washington, JD. G. 

